VLDL cholesterol (mg/dL) = triglycerides ÷ 5 (Friedewald), valid only when triglycerides are 400 mg/dL or lower.
VLDL cholesterol has no separate guideline band of its own, because it is almost always estimated from triglycerides. The ATP III report treated a VLDL cholesterol of 30 mg/dL or less as normal, and used that figure to set non-HDL cholesterol goals 30 mg/dL above LDL goals.
Because the estimate is triglycerides divided by 5, the triglyceride bands map straight onto it. The ATP III report treats fasting triglycerides below 150 mg/dL as normal, 150 to 199 as borderline high, 200 to 499 as high and 500 or above as very high. A triglyceride result of 150 gives a VLDL estimate of 30.
So a VLDL result above 30 mg/dL mostly says the same thing as a triglyceride result above 150 mg/dL. It is worth reading the triglyceride number directly, since that is the measured value and the VLDL figure is derived from it. A low VLDL estimate is generally not a concern on its own, since it simply reflects low triglycerides.
VLDL particles are made in the liver and carry triglycerides out to the body. Anything that raises triglycerides raises the estimate. Triglycerides climb for hours after a meal, especially one rich in refined carbohydrate or fat, and alcohol in the previous day or two can push them up.
Over weeks to months, excess body weight, physical inactivity and poorly controlled blood sugar tend to raise triglycerides, and weight loss and regular activity tend to lower them. The ATP III report lists conditions that can raise triglycerides, including an underactive thyroid, some kidney conditions and diabetes.
The same report names medicines that can raise triglycerides, including oral estrogens, corticosteroids, retinoids and beta blockers. Lipid medicines that lower triglycerides lower the VLDL estimate too, so a result taken on treatment reads differently from one taken off it.
Friedewald's method was built on fasting samples. If the panel was not fasting, a high VLDL estimate is worth repeating on a fasting sample before reading much into it, because a recent meal can lift triglycerides by itself. Keep the repeat under similar conditions, without heavy drinking or an unusual meal the night before.
Because triglycerides respond to weight, activity, alcohol and diet over weeks to months, a repeat after a few months of steady change gives a clearer signal than one within days. When a clinician has set a recheck schedule, that schedule comes first.
Triglycerides of 500 mg/dL or more, the ATP III very high band, are worth raising with a clinician promptly. Above 400 mg/dL this calculator stops, since the estimate no longer holds, and a direct measurement through the lab is the better route.
Dividing by 5 assumes VLDL particles always carry about five times as much triglyceride as cholesterol. Friedewald and colleagues noted the assumption breaks down above 400 mg/dL triglycerides, when chylomicrons from a recent meal are present, and in the rare type III lipoprotein disorder, where VLDL particles are unusually rich in cholesterol.
A 2013 study by Martin and colleagues in more than a million lipid profiles found the real ratio of triglyceride to VLDL cholesterol varies widely from person to person. It shifts with both the triglyceride level and the non-HDL cholesterol level, so a fixed factor of 5 can miss in either direction.
The formula also expects triglycerides in mg/dL. A value in mmol/L divided by 5 gives a meaningless number, so convert to mg/dL first or use the unit your lab printed for every value you compare. And because the estimate rests on a single measured value, any lab error or unusual swing in triglycerides passes straight through to VLDL, and from there into a Friedewald LDL result on the same report.
Take fasting triglycerides of 140 mg/dL. The formula is triglycerides divided by 5, so 140 divided by 5 gives a VLDL cholesterol estimate of 28 mg/dL. The triglyceride value is under 400, so the calculator returns a result rather than an error.
That 28 mg/dL sits just under the 30 mg/dL the ATP III report treated as normal, which fits with 140 mg/dL triglycerides sitting under the normal cut-off of 150. Read alongside a normal HDL and LDL, it would not usually draw much attention on its own.
Now take triglycerides of 450 mg/dL. Divided by 5 that would be 90, but the calculator stops and shows an error instead, because above 400 mg/dL the Friedewald estimate is not reliable. A clinician would read the triglyceride value itself and could ask the lab for a direct measurement.
The NIH (Sampson) LDL equation uses its own VLDL cholesterol estimate in place of triglycerides divided by 5. Its estimate is triglycerides divided by 8.56, plus triglycerides times non-HDL cholesterol divided by 2,140, minus triglycerides squared divided by 16,100. For 140 mg/dL triglycerides and a non-HDL of 150, that gives about 16.36 plus 9.81 minus 1.22, or about 25 mg/dL, a little below the Friedewald figure of 28.
The Martin and Hopkins method takes another route, choosing a factor from a table based on triglycerides and non-HDL cholesterol instead of always using 5. Both newer methods aim to correct the same weakness of the fixed factor. Neither one changes the basic point that VLDL cholesterol is an estimate built on triglycerides. When triglycerides are high or the panel was not fasting, all of these estimates lose some accuracy.
Remnant cholesterol, worked out as total cholesterol minus HDL minus LDL, is a closely related idea. A 2013 genetic study by Varbo and colleagues found raised remnant cholesterol was a causal risk factor for ischemic heart disease, which is one reason the cholesterol in triglyceride-rich particles gets attention.
The Heart health panel measures the values this calculator uses. Related: vldl, triglycerides, ldl cholesterol.
A VLDL cholesterol calculator estimates very low density lipoprotein cholesterol from your triglyceride value, using the Friedewald approach of triglycerides divided by five in mg/dL. It is an estimate, not a measurement, and it holds only when triglycerides are 400 mg/dL or lower. Above that, the division understates VLDL.
That single step is why most routine lipid panels can report a VLDL figure without ever isolating the particle. The rest of this page explains what the number describes, where the arithmetic drifts away from biology, and which results are worth raising with a clinician.
Very low density lipoprotein is the particle your liver builds to move triglycerides out into the circulation, and VLDL cholesterol is the cholesterol carried inside those particles.
Each VLDL particle leaves the liver loaded mostly with triglyceride, carrying a smaller cholesterol cargo and a single apolipoprotein B molecule on its surface. As it travels, the enzyme lipoprotein lipase strips triglyceride out of it so muscle and fat tissue can use the fatty acids. The particle shrinks and becomes a remnant. Some remnants are cleared by the liver, and others keep shrinking into intermediate density lipoprotein and then into LDL. So VLDL is not a separate kind of cholesterol so much as an early stage in the life of one particle family.
Those partly stripped particles are the reason the number gets attention at all. Remnant cholesterol, the cholesterol carried by triglyceride rich lipoproteins and their remnants, is small enough to cross into the artery wall and be retained there 1. Research suggests that remnant cholesterol is associated with atherosclerotic cardiovascular disease risk in ways an LDL cholesterol measurement alone does not fully capture 2. The VLDL line on your panel is a rough stand-in for that fraction.
The calculator needs one input, your triglyceride concentration from a standard lipid panel, ideally drawn after an overnight fast.
In conventional units the arithmetic is simple. VLDL cholesterol (mg/dL) equals triglycerides (mg/dL) divided by 5. Where a lab reports lipids in mmol/L, the equivalent division is by 2.2.
The number five is not a biological constant. It is an assumption built into the Friedewald equation, published in 1972, that in a fasting sample the mass ratio of triglyceride to cholesterol inside VLDL particles sits at roughly five to one 7. Friedewald's purpose was to estimate LDL cholesterol without spinning the sample in an ultracentrifuge, using total cholesterol minus HDL cholesterol minus triglycerides divided by five. The VLDL figure many labs print is a by-product of that same step.
One related calculation is worth knowing, because it uses the same inputs. Remnant cholesterol is usually derived as total cholesterol minus HDL cholesterol minus LDL cholesterol. When the LDL value in that subtraction was itself calculated by the Friedewald method, remnant cholesterol collapses back to the same triglycerides divided by five figure. In other words, on most standard panels, the VLDL estimate and the calculated remnant cholesterol are the same number wearing two labels.
Typical lab reference ranges place VLDL cholesterol at roughly 2 to 30 mg/dL, though ranges vary by lab, age and sex, and the estimate is only ever as good as the triglyceride value behind it. Because the result is triglycerides divided by five, each band below maps cleanly onto a familiar triglyceride category.
Under 30 mg/dL (triglycerides under 150 mg/dL). The observation is a VLDL estimate inside the typical reference range. That usually reflects unremarkable fasting triglyceride handling. It says nothing about LDL cholesterol or apoB, which can be elevated with normal triglycerides, so the sensible next step is to read this line beside the rest of the panel rather than on its own.
Around 30 to 40 mg/dL (triglycerides 150 to 199 mg/dL). The observation is a borderline figure. It may reflect something as ordinary as an incomplete fast, alcohol the night before, a high carbohydrate run of days, or recent weight gain. It may also reflect early insulin resistance, or thyroid, kidney or liver factors that shift triglyceride clearance. A repeat fasting panel under standardised conditions is worth discussing with a clinician before drawing any conclusion.
Around 40 to 100 mg/dL (triglycerides 200 to 499 mg/dL). The observation is a result above the typical range, and the word for it is suboptimal, not dangerous. This band often travels with low HDL cholesterol, central weight gain and markers of insulin resistance, and the estimate is still inside the range where the division by five is considered usable up to 400 mg/dL. It is worth bringing to a clinician, who can look at the pattern across the whole panel rather than this one derived number.
Above 100 mg/dL (triglycerides 500 mg/dL and above). The observation is that the calculator has been pushed outside the territory where it was validated, so the figure shown is unreliable and probably an underestimate. Do not disregard it. A triglyceride value in this range is worth discussing with a clinician promptly, because clinicians watch very high triglycerides for reasons that go beyond the arteries, and because accurate lipid measurement at that level usually needs a different method.
None of these bands identifies a disease. A single derived value cannot do that, and it is not meant to.
Triglycerides above 400 mg/dL. This is the hard limit on the formula. At high triglyceride concentrations the composition of circulating particles changes, the five to one assumption no longer describes them, and the calculated VLDL drifts from what measurement would show 7.
A non-fasting sample. After a meal the blood also contains chylomicrons and chylomicron remnants, which are triglyceride rich but are not VLDL. Dividing total triglycerides by five attributes all of them to VLDL, which inflates and distorts the estimate.
Cholesterol enriched remnants. In some inherited lipid patterns, including type III dysbetalipoproteinemia, remnant particles carry far more cholesterol per unit of triglyceride than the formula assumes, so the calculation understates the cholesterol those particles are actually carrying.
Very low LDL cholesterol. When LDL is low, a fixed factor equation carries proportionally more error across the whole lipid profile, which is one reason newer equations such as the Martin and Hopkins method use an adjustable factor instead of a fixed one 7.
Ordinary biological variation. Triglycerides swing more day to day than total or HDL cholesterol. Two draws a fortnight apart can produce noticeably different VLDL estimates in the same person without anything meaningful having changed.
Direct methods exist. Beta quantification by ultracentrifugation is the reference approach, and some laboratories offer direct assays or nuclear magnetic resonance profiling that report lipoprotein subfractions rather than inferring them. These are not standard on a routine panel, which is exactly why the division by five persists.
It matters more here than for most lipid markers. Triglycerides rise after eating, and they stay elevated for hours while dietary fat circulates, so a post meal draw can push the estimate up without reflecting anything about your baseline metabolism.
Non-fasting lipid panels are widely used for routine screening, and for total and HDL cholesterol that is reasonable. For the triglycerides divided by five estimate specifically, a fasting sample gives a number that is comparable with your own previous results and with the assumptions the formula was built on.
If you are tracking the trend rather than a single snapshot, consistency beats precision. Use the same fasting window each time, avoid alcohol the night before, and avoid an unusually hard training session in the preceding day or two, since both can move triglycerides.
Read the VLDL estimate next to triglycerides, non-HDL cholesterol and, where your lab offers it, apolipoprotein B. The dedicated VLDL Cholesterol marker page sets out what the value represents in more detail.
Non-HDL cholesterol is total cholesterol minus HDL cholesterol, and it captures the cholesterol in every apoB containing particle at once, including VLDL and its remnants. ApoB goes a step further and counts the particles themselves, since each one carries a single apoB molecule. Both sidestep the fixed ratio problem that limits the VLDL estimate.
Research suggests that remnant cholesterol is associated with incident cardiovascular disease, including among people whose LDL cholesterol is already in a reassuring range 3. Reviews of triglyceride rich lipoproteins suggest that remnant cholesterol may help explain residual risk that LDL focused assessment leaves unaddressed 4, and some authors have argued it deserves consideration as a lipid lowering target in its own right 5. An analysis of the PROMINENT trial suggests that absolute mass changes in remnant cholesterol, LDL cholesterol and apoB may help explain the trial result better than triglyceride lowering alone 6. None of that makes the VLDL line decisive on its own; it makes it one input among several.
The Heart Health panel from FitScript includes the lipid markers this calculation depends on, including triglycerides, total cholesterol, HDL cholesterol and LDL cholesterol, so the VLDL estimate is derived from measured values rather than guesswork. Membership covers 150+ biomarkers tested per year, and Atlas, FitScript's AI health advisor, reads each lipid result in the context of the rest of a member's biology rather than one line at a time. Where a result raises the question of treatment, a licensed provider evaluates whether anything is appropriate.
Bring the panel to a clinician if your triglycerides sit above the typical range on two separate fasting draws, if the VLDL estimate has climbed noticeably against your own history, or if it appears alongside low HDL cholesterol, raised fasting glucose or a rising waist measurement, since that cluster is usually read as a pattern rather than as separate findings.
A triglyceride result of 500 mg/dL or higher is worth discussing with a clinician promptly, both because the calculator is unreliable there and because that level changes what a clinician wants to check next. The same applies if you have a family history of early cardiovascular disease, since that shifts how any lipid pattern is interpreted.
What a clinician does with the result is a clinical decision. It may involve confirming the value, measuring apoB or a direct lipoprotein profile, checking thyroid, kidney, liver or glucose markers that influence triglycerides, reviewing alcohol and diet, or considering medication. Any prescription option is evaluated by a licensed provider who has reviewed you, not chosen from a calculator output. This article is educational and is not medical advice. Discuss your results and any treatment with a clinician or licensed provider before acting on them.
For related reading, see does coffee raise cholesterol and how do cholesterol lowering medications work.
Friedewald's method treats the cholesterol in VLDL as about one fifth of the triglycerides, so it estimates VLDL cholesterol as triglycerides divided by 5.
Yes. The Friedewald LDL equation subtracts HDL and this VLDL estimate from total cholesterol.
Friedewald's method was developed on fasting samples. Follow your lab's instructions for the panel you are ordering.
In conventional units, VLDL cholesterol (mg/dL) equals triglycerides (mg/dL) divided by 5. Where lipids are reported in mmol/L, the equivalent step is triglycerides divided by 2.2. The formula comes from the Friedewald equation and assumes the triglyceride to cholesterol mass ratio inside VLDL particles is about five to one.
Take the triglyceride value from a fasting lipid panel and divide it by five if it is reported in mg/dL. A triglyceride result of 120 mg/dL gives an estimated VLDL cholesterol of 24 mg/dL. The estimate is only considered usable when triglycerides are 400 mg/dL or lower.
Typical lab reference ranges put VLDL cholesterol at roughly 2 to 30 mg/dL, which corresponds to triglycerides under about 150 mg/dL. Reference ranges vary by lab, age and sex, so compare your result against the range printed on your own report and discuss it with a clinician.
At high triglyceride concentrations the composition of circulating lipoproteins changes and the fixed five to one ratio no longer describes them, so the division understates the cholesterol those particles carry. Above that threshold, a clinician would usually rely on direct measurement or other markers instead.
They overlap. Remnant cholesterol is usually derived as total cholesterol minus HDL cholesterol minus LDL cholesterol, and when LDL was itself calculated by the Friedewald method, that subtraction produces the same triglycerides divided by five figure. Conceptually, remnant cholesterol also includes chylomicron remnants, which matters most in non-fasting samples.
A fasting sample gives a more comparable number for this specific calculation, because eating raises triglycerides and adds chylomicrons that the formula wrongly attributes to VLDL. Non-fasting panels are widely used for general screening, but if you are tracking the trend, keep the fasting window consistent each time.
Yes. Beta quantification by ultracentrifugation is the reference method, and some laboratories offer direct assays or nuclear magnetic resonance lipoprotein profiling. These are not part of a routine lipid panel, which is why most reports show a calculated estimate rather than a measured value.
No. A single derived value cannot identify a condition. It describes one slice of your lipid picture at one moment, and it can be raised by a recent meal, alcohol, weight change or an underlying metabolic pattern. Interpretation belongs with a clinician who can see the whole panel and your history.
VLDL belongs to the apoB containing particle family, the same group as LDL, and its remnants can enter the artery wall. Remnant cholesterol is associated with cardiovascular risk, so it is generally read as a marker to keep in the typical range rather than one to raise.